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Regular Expression
PCRE2 (PHP >=7.3)
/
^
(?:
(
[
-
]
?
\d
*
)
[
x
]
(?:
\^
2
)
)
(?:
(?:
\+
(
\d
*
)
[
x
]
)?
|
(?:
(
\-
\d
*
)
[
x
]
)?
)
(?:
(?:
\+
(
[
\d
]
)
)?
|
(?:
(
\-
[
\d
]
)
)?
)
(?:
(
\=
)
|)
(?:
(
0
)
|)
$
/
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Description
Matches second-degree polynomials and returns values a, b, c, sign, and 0.
Submitted by
SpiderRocket
-
15 days ago